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43 papers · 1 filter
Space-Time Singularities and the Kahler Cone
Laur Jarv, Christoph Mayer, Thomas Mohaupt +1
We review recent results on the interplay between the five-dimensional space-time and the internal manifold in Calabi-Yau compactifications of M-theory. Black string, black hole an…
The Kahler Cone as Cosmic Censor
Christoph Mayer, Thomas Mohaupt
M-theory effects prevent five-dimensional domain-wall and black-hole solutions from developing curvature singularities. While so far this analysis was performed for particular mode…
Special Geometry of Euclidean Supersymmetry I: Vector Multiplets
Vicente Cortes, Christoph Mayer, Thomas Mohaupt +1
We construct the general action for Abelian vector multiplets in rigid 4-dimensional Euclidean (instead of Minkowskian) N=2 supersymmetry, i.e., over space-times with a positive de…
An Extremely Young Massive Stellar Object near IRAS 07029-1215
Jan Forbrich, Katharina Schreyer, Bettina Posselt +2
In the course of a comprehensive mm/submm survey of massive star-forming regions, the vicinities of a sample of 47 luminous IRAS sources were closely investigated with SCUBA and IR…
Nonlocal Quantum Gravity and the Size of the Universe
M. Reuter, F. Saueressig
Motivated by the conjecture that the cosmological constant problem is solved by strong quantum effects in the infrared we use the exact flow equation of Quantum Einstein Gravity to…
NGC 2264 IRS1: The central engine and its cavity
Katharina Schreyer, Bringfried Stecklum, Hendrik Linz +1
We present a high-resolution study of NGC 2264 IRS1 in CS(2-1) and in the 3-mm continuum using the IRAM Plateau de Bure Interferometer. We complement these radio data with images t…